Preparation and properties of chitosan-g-poly (acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Preparation and properties of chitosan-g-poly (acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization
	Wang AQ(王爱勤); Zhang JP(张俊平)
刊名	Industrial & Engineering Chemistry Research
	2007
卷号	46 期号:8 页码:2497-2502
ISSN号	0888-5885
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	A novel chitosan-g-poly(acrylic acid)/montmorillonite superabsorbent nanocomposite with water absorbency of 160.1 g g-1 in distilled water and 46.6 g g-1 in 0.9 wt % NaCl solution was prepared by in situ intercalative polymerization among chitosan, acrylic acid, and montmorillonite in aqueous solution, using N,N‘-methylenebisacrylamide as a cross-linker and ammonium persulfate as an initiator. Chitosan could intercalate into layers of montmorillonite and form superabsorbent nanocomposites through in situ graft-polymerization with acrylic acid according to XRD, IR spectra, TEM, and SEM analysis. The one-step method is more convenient, and the corresponding nanocomposites have higher swelling ability and pH-responsivity as compared to the two-step method. Factors influencing water absorbency of the superabsorbent nanocomposite were investigated, such as weight ratio of acrylic acid to chitosan and montmorillonite content. The introduced montmorillonite could form a loose and porous surface and improve water absorbency of the chitosan-g-poly(acrylic acid) superabsorbent.
学科主题	功能高分子
收录类别	SCI
资助信息	国家863计划项目(2006AA03Z0454);中国科学院“西部行动”项目(KGCX2-YW-501)
语种	英语
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/201]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式 GB/T 7714	Wang AQ,Zhang JP. Preparation and properties of chitosan-g-poly (acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization[J]. Industrial & Engineering Chemistry Research,2007,46(8):2497-2502.
APA	王爱勤,&张俊平.(2007).Preparation and properties of chitosan-g-poly (acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization.Industrial & Engineering Chemistry Research,46(8),2497-2502.
MLA	王爱勤,et al."Preparation and properties of chitosan-g-poly (acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization".Industrial & Engineering Chemistry Research 46.8(2007):2497-2502.